Core Laboratories
CLB
187 hedge funds and large institutions have $804M invested in Core Laboratories in 2025 Q4 according to their latest regulatory filings, with 30 funds opening new positions, 52 increasing their positions, 77 reducing their positions, and 30 closing their positions.
28,200% more call options, than puts
Call options by funds: $566K | Put options by funds: $2K
27% more capital invested
Capital invested by funds: $633M → $804M (+$171M)
0% more first-time investments, than exits
New positions opened: 30 | Existing positions closed: 30
1.52% less ownership
Funds ownership: 109.21% → 107.69% (-1.5%)
2% less funds holding
Funds holding: 190 → 187 (-3)
32% less repeat investments, than reductions
Existing positions increased: 52 | Existing positions reduced: 77
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CAMG
CWA Asset Management Group
Naples,
Florida
|
+$9.26M |
| 2 |
Goldman Sachs
New York
|
+$8.17M |
| 3 |
American Century Companies
Kansas City,
Missouri
|
+$2.28M |
| 4 |
Renaissance Technologies
New York
|
+$2.22M |
| 5 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DGI
Disciplined Growth Investors
Minneapolis,
Minnesota
|
-$12M |
| 2 |
RA
Royce & Associates
New York
|
-$3.48M |
| 3 |
HF
HRT Financial
New York
|
-$3.33M |
| 4 |
EARNEST Partners
Atlanta,
Georgia
|
-$3.08M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$3.02M |
CLB Hedge Fund Activity: Q4 2025 in Review
187 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in Core Laboratories (CLB) for Q4 2025, worth a combined $804M — up 27% from $633M a quarter earlier.
Fund positioning in CLB was balanced in Q4 2025: 30 funds opened new positions, 30 closed out, 52 added to existing stakes and 77 trimmed.
The largest buyer was CWA Asset Management Group, opening a new position worth an estimated $9.26M. The largest seller was Disciplined Growth Investors, cutting an estimated $12M.
- 187 institutional investors held Core Laboratories (CLB) as of Q4 2025, down from 190 in Q3 2025.
- Funds reported $804M of Core Laboratories stock for Q4 2025, up 27% quarter-over-quarter.
- 30 funds opened new Core Laboratories positions in Q4 2025 and 30 closed out, a net change of 0 holders.
- The largest Core Laboratories buyer in Q4 2025 was CWA Asset Management Group, an estimated $9.26M added.
- The largest Core Laboratories seller in Q4 2025 was Disciplined Growth Investors, an estimated $12M sold.
Based on aggregated 13F filings for Q4 2025.